Air War
Western Front: ÂRoyal Flying Corps ace McCudden shoots down 3 LVGs in 20 minutes (4 kills on December 23).
Italy: Austrians bomb Padua (until December 30), cause 79 casualties, bomb Treviso, Bassano, Vicenza and Castelfranco (December 31).
Eastern Front
Russia: Lenin attends Demobilization Congress which votes for Army’s dissolution; he requests ‘revolutionary units’ to hold front line.
Southern Fronts
Austria: Arz replies to Ludendorff (from December 23), agrees his Western Front 1918 spring offensive will be decisive and Austrian troops will be sent, once no longer needed in Russia.